Free surface floodgate in 2D

[PaulNielsen]

I am currently investigating the possibilty of simulating a flloodgate in SimCFD 2016 preferably in 2D. 

The situation is that the gate has been lowered 100mm and we want to simulate this event.

How are the free surface capabilities i 2D?

How do I define the boundary condition so that I the fluid height on the left is constant (see attached pic)? 

Right now we are only interested in wether or not the method works, not so much in accurate results. However tips on regarding domain size or whatever are appreciated.

[Jon.Wilde]

Simply, yes - we can do this in 3D and 2D 🙂

Check out this webinar, I think it will help you out!

[Jon.Wilde]

Hi Paul,

How did this work out? All OK?

[PaulNielsen]

I attended that webinar actually! I rewatched it now too and it doesn't really answer my question on how to keep the sealevel constant. Is assigning a flow condition at the inlet the only way to keep the body of water from sinking?

[Jon.Wilde · Accepted solution]

Very cool, glead to hear it.

Check this out, using the pressure underneath might be the solution. I have used this quite a few times now with great success.

[PaulNielsen]

Cool i will try the pressure suggestion on monday. I will get back to you with that!